The juice of half a white grapefruit (about ¼ cup)
Instructions
To a cocktail shaker or mason jar, add gin, grenadine and fresh squeezed grapefruit juice. Shake well. 2. Fill 2 highball glasses with ice. Divide between 2 glasses. 3. Top each cocktail with chilled ginger beer. 4. Garnish with maraschino cherries and serve.